What is nanorobotics?

"Nanorobotics", "medical nanorobotics", "medical nanorobot", or simply "nanorobot", is an emerging technology field comprised of multidisciplinary subjects such as quantum electronics, biomaterials, nanoelectronics, photonics, and biotechnology. The possibility of applications of nanorobots and most important impacts are expected on biomedical engineering, homeland security, environmental monitoring, petroleum and precious metal production. The economic potential is huge, and a large number of government funding initiative for research in this topic is currently booming. Related initiative from several countries around the globe involves numerous research centres, universities, and corporate industry thriving towards the fast development of practical devices based on Nanotechnology.